Manage auto connect via Android API

src/main/AndroidManifest.xml

@@ -125,10 +125,9 @@
             </intent-filter>
         </service>
 
-        <receiver android:name=".ShadowsocksReceiver">
+        <receiver android:name=".BootReceiver" android:enabled="false">
             <intent-filter>
                 <action android:name="android.intent.action.BOOT_COMPLETED"/>
-                <action android:name="com.github.shadowsocks.ACTION_UPDATE_STATE"/>
             </intent-filter>
         </receiver>
 

src/main/res/xml/pref_all.xml

@@ -70,6 +70,7 @@
 
         <SwitchPreference
                 android:key="isAutoConnect"
+                android:persistent="false"
                 android:summary="@string/auto_connect_summary"
                 android:title="@string/auto_connect"/>
 

src/main/scala/com/github/shadowsocks/BootReceiver.scala

@@ -39,13 +39,19 @@
 
 package com.github.shadowsocks
 
-import android.content.{BroadcastReceiver, Context, Intent}
+import android.content.pm.PackageManager
+import android.content.{BroadcastReceiver, ComponentName, Context, Intent}
 import com.github.shadowsocks.utils._
 
-class ShadowsocksReceiver extends BroadcastReceiver {
-  def onReceive(context: Context, intent: Intent) {
-    if (ShadowsocksApplication.settings.getBoolean(Key.isAutoConnect, false)) {
-      Utils.startSsService(context)
-    }
-  }
+object BootReceiver {
+  def getEnabled(context: Context) = PackageManager.COMPONENT_ENABLED_STATE_ENABLED ==
+    context.getPackageManager.getComponentEnabledSetting(new ComponentName(context, classOf[BootReceiver]))
+  def setEnabled(context: Context, enabled: Boolean) = context.getPackageManager.setComponentEnabledSetting(
+    new ComponentName(context, classOf[BootReceiver]),
+    if (enabled) PackageManager.COMPONENT_ENABLED_STATE_ENABLED else PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
+    PackageManager.DONT_KILL_APP)
+}
+
+class BootReceiver extends BroadcastReceiver {
+  def onReceive(context: Context, intent: Intent) = Utils.startSsService(context)
 }

src/main/scala/com/github/shadowsocks/ShadowsocksSettings.scala

@@ -16,7 +16,6 @@ import com.github.shadowsocks.utils.{Key, Utils}
 object ShadowsocksSettings {
   // Constants
   private final val TAG = "ShadowsocksSettings"
-  private final val PREFS_NAME = "Shadowsocks"
   private val PROXY_PREFS = Array(Key.profileName, Key.proxy, Key.remotePort, Key.localPort, Key.sitekey, Key.encMethod,
     Key.isAuth)
   private val FEATURE_PREFS = Array(Key.route, Key.isProxyApps, Key.isUdpDns, Key.isIpv6)
@@ -81,6 +80,17 @@ class ShadowsocksSettings extends PreferenceFragment with OnSharedPreferenceChan
       false
     })
 
+    val switch = findPreference(Key.isAutoConnect).asInstanceOf[SwitchPreference]
+    switch.setOnPreferenceChangeListener((_, value) => {
+      BootReceiver.setEnabled(activity, value.asInstanceOf[Boolean])
+      true
+    })
+    if (getPreferenceManager.getSharedPreferences.getBoolean(Key.isAutoConnect, false)) {
+      BootReceiver.setEnabled(activity, true)
+      getPreferenceManager.getSharedPreferences.edit.remove(Key.isAutoConnect).apply
+    }
+    switch.setChecked(BootReceiver.getEnabled(activity))
+
     findPreference("recovery").setOnPreferenceClickListener((preference: Preference) => {
       ShadowsocksApplication.track(TAG, "reset")
       activity.recovery()
@@ -130,7 +140,7 @@ class ShadowsocksSettings extends PreferenceFragment with OnSharedPreferenceChan
     ShadowsocksApplication.settings.unregisterOnSharedPreferenceChangeListener(this)
   }
 
-  def onSharedPreferenceChanged(sharedPreferences: SharedPreferences, key: String) = key match {
+  def onSharedPreferenceChanged(pref: SharedPreferences, key: String) = key match {
     case Key.isNAT =>
       activity.handler.post(() => {
         activity.detachService